STUDY ON THE VIBRATIONAL CHARACTERISTICS OF A TUBE ARRAY CAUSED BY TWO-PHASE FLOW. PART 1: RANDOM VIBRATION

This paper presents the experimental results on turbulent buffeting forces generated both by air-water flow and by steam-water two-phase flow for the extreme pressure conditions up to 5.8 MPa and temperatures reaching 272oC, the explanation of the mechanism producing these forces, and a method for evaluating tube response caused by two-phase flow. The main source of the buffeting forces in slug or froth two-phase flow is recognized to be the impact forces caused by the intermittently rising water slugs. The slug speed and the fluid forces acting on a tube are estimated, together with an estimation of the period of the occurrence of the rising water slug. The accuracy of this estimation method is proved by comparing the theoretical response with the measured one.

  • Supplemental Notes:
    • J Fluids and Structures, v 9 n 5, July 1995, p 519 [20 p, 10 ref, 14 fig]
  • Authors:
    • Nakamura, T
    • FUJITA, K
  • Publication Date: 1995

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00717296
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 4 1996 12:00AM